Effect of atmospheric pressure fluctuations on low frequency and infrasound detection

2003 ◽  
Vol 113 (4) ◽  
pp. 2247-2247
Author(s):  
Carrick L. Talmadge ◽  
Doug Shields
Keyword(s):  
Atmospheric Pressure ◽  
Pressure Fluctuations ◽  
Low Frequency ◽  
Atmospheric Pressure Fluctuations

Experimental Investigation of Atmospheric Turbulence and Infrasound Upon the Ocean's Surface

1992 ◽  
Vol 11 (4) ◽  
pp. 109-113
Author(s):  
A.N. Ivannikov ◽  
S.V. Makeev ◽  
V.I. Pavlov
Keyword(s):  
Experimental Investigation ◽  
Theoretical Model ◽  
Atmospheric Turbulence ◽  
Atmospheric Pressure ◽  
Pressure Fluctuations ◽  
Amplitude Spectrum ◽  
Low Frequency ◽  
The Pacific ◽  
Atmospheric Pressure Fluctuations ◽  
The Pacific Ocean

In this paper the original results of the observation of low frequency atmospheric pressure fluctuations are presented The results have been obtained over the Pacific Ocean surface during the 17th expedition of the “Academician Nesmejanov” ship. The theoretical expressions for the degree law of the amplitude spectrum decrease and its connection with the wind velocity were found. Analysis of the experimental results was compared with the proposed theoretical model of turbulence. The spikes on the background of fluctuation spectra have been discovered.

The Stochastic Parametric Mechanism for Growth of Wind-Driven Surface Water Waves

2008 ◽  
Vol 38 (4) ◽  
pp. 862-879 ◽  
Author(s):  
Brian F. Farrell ◽  
Petros J. Ioannou
Keyword(s):  
Surface Water ◽  
Growth Rates ◽  
Atmospheric Pressure ◽  
Water Waves ◽  
Wave Amplitude ◽  
Pressure Fluctuations ◽  
Theoretical Understanding ◽  
Wave Growth ◽  
Atmospheric Pressure Fluctuations ◽  
Surface Water Waves

Abstract Theoretical understanding of the growth of wind-driven surface water waves has been based on two distinct mechanisms: growth due to random atmospheric pressure fluctuations unrelated to wave amplitude and growth due to wave coherent atmospheric pressure fluctuations proportional to wave amplitude. Wave-independent random pressure forcing produces wave growth linear in time, while coherent forcing proportional to wave amplitude produces exponential growth. While observed wave development can be parameterized to fit these functional forms and despite broad agreement on the underlying physical process of momentum transfer from the atmospheric boundary layer shear flow to the water waves by atmospheric pressure fluctuations, quantitative agreement between theory and field observations of wave growth has proved elusive. Notably, wave growth rates are observed to exceed laminar instability predictions under gusty conditions. In this work, a mechanism is described that produces the observed enhancement of growth rates in gusty conditions while reducing to laminar instability growth rates as gustiness vanishes. This stochastic parametric instability mechanism is an example of the universal process of destabilization of nearly all time-dependent flows.

scholarly journals The effects of slight atmospheric pressure fluctuations on the occurrence of emergency transport due to suicidal injuries

Health ◽  
2010 ◽  
Vol 02 (05) ◽  
pp. 448-453
Author(s):  
Lyudmyla Aleksandrovna Didyk ◽  
Yuriy Pavlovich Gorgo ◽  
Joris Jan Josef Dirckx ◽  
Irina Aleksandrovna Semenova ◽  
Nataliya Petrovna Didyk ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Pressure Fluctuations ◽  
Emergency Transport ◽  
Atmospheric Pressure Fluctuations

scholarly journals Observations of solar global oscillations (1983–1985) and potential influence of terrestrial sources of errors

1988 ◽  
Vol 123 ◽  
pp. 33-36
Author(s):  
A.B. Severny ◽  
V.A. Kotov ◽  
T.T. Tsap
Keyword(s):  
Atmospheric Pressure ◽  
Pressure Fluctuations ◽  
The Sun ◽  
Potential Influence ◽  
The Earth ◽  
Atmospheric Pressure Fluctuations

The Earth atmospheric pressure fluctuations in the 5-min range of periods are analysed and their influence on observations of solar 5-min oscillations are briefly discussed. New series of observations confirmed the oscillations of the Sun with period of 160.010 min.

Sign in / Sign up

Export Citation Format

Share Document